blob: 4542b015d0432c007d50f0543a0fec125dbfc328 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
|
(* File reduced by coq-bug-finder from original input, then from 1829 lines to 37 lines, then from 47 lines to 18 lines *)
Class Contr_internal (A : Type) :=
BuildContr { center : A ;
contr : (forall y : A, True) }.
Class Contr A := Contr_is_contr : Contr_internal A.
Inductive Unit : Set := tt.
Instance contr_unit : Contr Unit | 0 :=
let x := {|
center := tt;
contr := fun t : Unit => I
|} in x. (* success *)
Instance contr_internal_unit' : Contr_internal Unit | 0 :=
{|
center := tt;
contr := fun t : Unit => I
|}.
Instance contr_unit' : Contr Unit | 0 :=
{|
center := tt;
contr := fun t : Unit => I
|}.
(* Error: Mismatched contexts while declaring instance:
Expected: (Contr_is_contr : Contr_internal _UNBOUND_REL_1)
Found: tt (fun t : Unit => I) *)
|
